2026-06-16T09:44:40Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/52022021-11-10T09:53:33Zcom_10259_4996com_10259_3989com_10259.4_106com_10259_2604col_10259_4999

EVIDENT smartphone app, a new method for the dietary record: comparison with a food frequency questionnaire Recio Rodríguez, José I. Rodríguez Martín, Carmela González Sánchez, Jesús Rodríguez Sánchez, Emiliano Martín Borras, Carme Martínez Vizcaino, Vicente Arietaleanizbeaskoa, María Soledad Magdalena González, Olga Fernández Alonso, Carmen Maderuelo Fernández, José A. Gómez Marcos, Manuel A. García Ortiz, Luis On Behalf of the EVIDENT Investigators technology assessment biomedical telemedicine energy intake diet records surveys and questionnaires Nutrición Nutrition Background: More alternatives are needed for recording people’s normal diet in different populations, especially adults or the elderly, as part of the investigation into the effects of nutrition on health. Objective: The aim of this study was to compare the estimated values of energy intake, macro- and micronutrient, and alcohol consumption gathered using the EVIDENT II smartphone app against the data estimated with a food frequency questionnaire (FFQ) in an adult population aged 18 to 70 years. Methods: We included 362 individuals (mean age 52 years, SD 12; 214/362, 59.1% women) who were part of the EVIDENT II study. The participants registered their food intake using the EVIDENT app during a period of 3 months and through an FFQ. Both methods estimate the average nutritional composition, including energy intake, macro- and micronutrients, and alcohol. Through the app, the values of the first week of food recording, the first month, and the entire 3-month period were estimated. The FFQ gathers data regarding the food intake of the year before the moment of interview. Results: The intraclass correlation for the estimation of energy intake with the FFQ and the app shows significant results, with the highest values returned when analyzing the app’s data for the full 3-month period (.304, 95% CI 0.144-0.434; P<.001). For this period, the correlation coefficient for energy intake is .233 (P<.001). The highest value corresponds to alcohol consumption and the lowest to the intake of polyunsaturated fatty acids (r=.676 and r=.155; P<.001), respectively. The estimation of daily intake of energy, macronutrients, and alcohol presents higher values in the FFQ compared with the EVIDENT app data. Considering the values recorded during the 3-month period, the FFQ for energy intake estimation (Kcal) was higher than that of the app (a difference of 408.7, 95% CI 322.7-494.8; P<.001). The same is true for the other macronutrients, with the exception g/day of saturated fatty acids (.4, 95% CI −1.2 to 2.0; P=.62). Conclusions: The EVIDENT app is significantly correlated to FFQ in the estimation of energy intake, macro- and micronutrients, and alcohol consumption. This correlation increases with longer app recording periods. The EVIDENT app can be a good alternative for recording food intake in the context of longitudinal or intervention studies. Trial Registration: ClinicalTrials.gov NCT02016014; http://clinicaltrials.gov/ct2/show/NCT02016014 (Archived by WebCite at http://www.webcitation.org/760i8EL8Q). Spanish Ministry of Science and Innovation and Carlos III Health Institute/European Regional Development Fund (FIS: PI13/00618, PI13/01526, PI13/00058, PI13/01635, PI13/02528, PI12/01474; RETICS: RD12/0005, RD16/0007), Regional Health Management of Castilla and León (GRS 1191/B/15, GRS 909/B/14, GRS 770/B/13), and the Infosalud Foundation 2020-01-09T09:50:28Z 2020-01-09T09:50:28Z 2019-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/10259/5202 10.2196/11463 2291-5222 eng JMIR mHealth and uHealth. 2019, V. 7, n. 2, e11463 https://doi.org/10.2196/11463 info:eu-repo/grantAgreement/MICINN/PI13/00618 info:eu-repo/grantAgreement/MICINN/PI13/01526 info:eu-repo/grantAgreement/MICINN/PI13/00058 info:eu-repo/grantAgreement/MICINN/PI13/01635 info:eu-repo/grantAgreement/MICINN/PI13/02528 info:eu-repo/grantAgreement/MICINN/PI12/01474 info:eu-repo/grantAgreement/MICINN/RD12/0005 info:eu-repo/grantAgreement/MICINN/RD16/0007 info:eu-repo/grantAgreement/JCyL/1191-B-15 info:eu-repo/grantAgreement/JCyL/909-B-14 info:eu-repo/grantAgreement/JCyL/770-B-13 http://creativecommons.org/licenses/by/4.0/ Atribución 4.0 Internacional info:eu-repo/semantics/openAccess application/pdf JMIR Publications